Finding the Fourth Proportional to 10,521.60, 14,519.52 and 5,805.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,521.60 : 14,519.52 = 5,805.54 : x
2. Step 2: Convert to fraction form
   10,521.60/14,519.52 = 5,805.54/x
3. Step 3: Cross multiply
   10,521.60x = 14,519.52 × 5,805.54
4. Step 4: Simplify right side
   10,521.60x = 84,293,654.14
5. Step 5: Solve for x
   x = 84,293,654.14/10,521.60
6. Step 6: Final answer
   x = 8,011.49